implement preview for center

src/Schedule/schedule.schema.ts

@@ -24,15 +24,12 @@ export type ScheduleConfigType =
   | null
   | undefined
 
-export type ScheduleConfigTypeForCenter =
-  | {
-      startDate?: string | null | undefined
-      endDate?: string | null | undefined
-      slots?: number[] | null | undefined
-      days?: number[] | null | undefined
+export type ScheduleConfigTypeForCenter = {
+  startDate: string
+  endDate: string
+  slots: number[]
+  days: number[]
 }
-  | null
-  | undefined
 
 export type ScheduleSlotType = {
   slot: string
@@ -185,10 +182,18 @@ export class ScheduleSchema extends PothosSchema {
   scheduleConfigInputForCenter() {
     return this.builder.inputType('ScheduleConfigInputForCenter', {
       fields: (t) => ({
-        startDate: t.string(),
-        endDate: t.string(),
-        slots: t.intList(),
-        days: t.intList(),
+        startDate: t.string({
+          required: true,
+        }),
+        endDate: t.string({
+          required: true,
+        }),
+        slots: t.intList({
+          required: true,
+        }),
+        days: t.intList({
+          required: true,
+        }),
       }),
     })
   }
@@ -224,20 +229,21 @@ export class ScheduleSchema extends PothosSchema {
         },
       }),
 
-      // centerPreviewSchedule: t.field({
-      //   type: this.previewSchedule(),
-      //   description: 'Preview a schedule for center mentor.',
-      //   args: {
-      //     scheduleConfig: t.arg({
-      //       type: this.scheduleConfigInputForCenter(),
-      //     }),
-      //   },
-      //   resolve: async (_parent, args, _context, _info) => {
-      //     return await this.scheduleService.createSchedulePreviewForCenter(
-      //       args.scheduleConfig,
-      //     )
-      //   },
-      // }),
+      centerPreviewSchedule: t.field({
+        type: this.previewSchedule(),
+        description: 'Preview a schedule for center mentor.',
+        args: {
+          scheduleConfigInput: t.arg({
+            type: this.scheduleConfigInputForCenter(),
+            required: true,
+          }),
+        },
+        resolve: async (_parent, args, _context, _info) => {
+          return await this.scheduleService.createSchedulePreviewForCenter(
+            args.scheduleConfigInput,
+          )
+        },
+      }),
 
       adminPreviewSchedule: t.field({
         type: this.previewSchedule(),

src/Schedule/schedule.service.ts

@@ -42,7 +42,6 @@ export class ScheduleService {
     scheduleConfig: ScheduleConfigType,
   ): Promise<PreviewScheduleType> {
     const config: Config[] = await this.appConfigService.getVisibleConfigs()
-    Logger.log(config)
     // process scheduleConfig input by filling with default values from config
     const scheduleConfigFilled = this.processScheduleConfig(
       scheduleConfig,
@@ -57,17 +56,17 @@ export class ScheduleService {
     }
   }
 
-  // async createSchedulePreviewForCenter(
-  //   scheduleConfig: ScheduleConfigTypeForCenter,
-  // ): Promise<PreviewScheduleType> {
-  //   const config: Config[] = await this.appConfigService.getVisibleConfigs()
-  //   Logger.log(config)
-  //   // process scheduleConfig input by filling with default values from config
-  //   const scheduleConfigFilled = this.processScheduleConfig(
-  //     scheduleConfig,
-  //     config,
-  //   )
-  // }
+  // create preview for center require scheduleConfigInput: { startDate: "2024-11-02T00:00:00.000Z", endDate: "2024-11-22T00:00:00.000Z", slots: [1, 3], days: [2, 5] }
+  async createSchedulePreviewForCenter(
+    scheduleConfig: ScheduleConfigTypeForCenter,
+  ): Promise<PreviewScheduleType> {
+    const config: Config[] = await this.appConfigService.getVisibleConfigs()
+    const slots = this.generateSlotsPreviewForCenter(scheduleConfig, config)
+    return {
+      totalSlots: slots.length,
+      slots: slots,
+    }
+  }
 
   async generateScheduleDates(schedule: Schedule): Promise<ScheduleDate[]> {
     // generate schedule dates based on data and config
@@ -118,6 +117,59 @@ export class ScheduleService {
     return scheduleDatesCreated
   }
 
+  generateSlotsPreviewForCenter(
+    scheduleConfig: ScheduleConfigTypeForCenter,
+    config: Config[],
+  ): ScheduleSlotType[] {
+    const startDate = DateTime.fromISO(scheduleConfig.startDate)
+    const endDate = DateTime.fromISO(scheduleConfig.endDate)
+    const daysOfWeeks = scheduleConfig.days
+
+    // Retrieve slot configuration values once
+    const slotDuration =
+      config.find((c) => c.key === 'SLOT_DURATION')?.value ?? ''
+    const slotBreakDuration =
+      config.find((c) => c.key === 'SLOT_BREAK_DURATION')?.value ?? ''
+    const slotStartTime =
+      config.find((c) => c.key === 'SLOT_START_TIME')?.value ?? ''
+    const slotEndTime =
+      config.find((c) => c.key === 'SLOT_END_TIME')?.value ?? ''
+
+    // Calculate the number of slots based on configuration
+    const numberOfSlots = this.calculateNumberOfSlots(
+      slotStartTime,
+      slotEndTime,
+      slotDuration,
+      slotBreakDuration,
+    )
+
+    const slots: ScheduleSlotType[] = []
+
+    // Loop through each day between start and end dates
+    for (let date = startDate; date <= endDate; date = date.plus({ days: 1 })) {
+      if (daysOfWeeks.includes(date.weekday)) {
+        Logger.log(`Generating slots for date: ${date.toISO()}`)
+        // For each slot number, calculate start and end times
+        for (let i = 1; i <= numberOfSlots; i++) {
+          const { startTime, endTime } = this.getSlotStartAndEndTime(
+            i,
+            slotDuration,
+            slotBreakDuration,
+            slotStartTime,
+          )
+
+          slots.push({
+            slot: i.toString(),
+            start: startTime.toISO() ?? '',
+            end: endTime.toISO() ?? '',
+          })
+        }
+      }
+    }
+
+    return slots
+  }
+
   generateSlots(scheduleConfigFilled: ScheduleConfigType): ScheduleSlotType[] {
     const slots: ScheduleSlotType[] = []
     const numberOfSlots = this.calculateNumberOfSlots(